Assembly/disassembly structure of upstanding grinding axle

ABSTRACT

The present invention provides a woodwork grinder, which can allow the grinding axle to be positioning quickly for replacement, so that the replacement can be carried out smoothly; it comprises a flexible insert rod on the grinding based of the grinding axle, and at least one insert slot on the side of the rotary axle of the grinding axle, so that the insert rod can be inserted into the insert slot when the rotary axle is stationary to position the rotary axle, and operators can use tools to assemble or disassemble the grinding axle so that the assembling/disassembling process can be carried out conveniently.

BACKGROUND OF INVENTION

(1) Field of the Invention

The present invention relates generally to an upstanding grinding axle,and more particularly to a structure which can provide positioningfunction to the rotary axle for the convenience of assembly/disassemblyfor replacement or cleaning during the grinding process, in order tomake the assembling/disassembling process more convenient and improvethe grinding efficiency.

(2) Description of the Prior Art

Conventional upstanding grinders, as shown in FIGS. 4 and 5, whichcomprising a working table (11) affixed to the entire machine base (10),a rotary axle (13) protruding from the center of the grinding base (12),and a grinding axle (14) fastened to the center of the rotary axle, sothat the sand belt on the grinding axle (14) could carry out grindingquickly. On the overall design, because the sand belt on the grindingaxle (14) is considered a frequent consumable product, it needs to beremoved from the grinding axle (14) for cleaning or replacement;however, because the grinding axle (14) is located at the center of theworking table (11), its rotary axle (13) is confined by the workingtable (11), so that the assembly/disassembly of grinding axle (14)requires clamping the thread of screw (15) manually with one hand tostop the rotation of the entire rotary axle (13), and rotation thehexagonal axle (16) by the wrench with another hand to rotate thegrinding axle (14) for removal or replacement. Because of limitedoperating space, operators need to hold tools in both hands forassembly/disassembly, which is awkward, time-consuming, reducing thegrinding efficiency, and consuming the energy of operators.

SUMMARY OF THE INVENTION

In response to the difficulty of replacing sand cloth on the grindingaxle of the upstanding grinder for woodwork, the present inventionimproved the conventional structure, and designed this structure toutilize the limited space on the grinding based to install a set offlexible insert rod component, so that when the rotary axle is still,the rod can be inserted into the insert slot of the rotary axle, and theoperators can use one wrench to complete the assembly/disassembly ofgrinding axle, so that the grinding efficiency could be greatlyimproved.

Therefore, the present invention provides a set of flexible insert rodcomponent in the limited space of the grinder, so that operators can usefingers to position the rotary axle, in order to improve the operatingefficiency of the grinding axle.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a diagram of the woodworking machine of the presentinvention.

FIG. 2 shows the part components of the woodworking machine of thepresent invention.

FIG. 3 shows a partial exploded view of the flexible insert rodcomponent of the present invention.

FIG. 4 shows a diagram of the conventional woodworking machine.

FIG. 5 shows a local diagram of the conventional woodworking machine.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The features and the advantages of the present invention will be morereadily understood upon a thoughtful deliberation of the followingdetailed description of a preferred embodiment of the present inventionwith reference to the accompanying drawings.

Referring to FIGS. 1 and 2, the grinder 20 is installed with a workingtable 21 in the upper part, and a grinding base 22 in the lower part,and there is a rotary axle 23 protruding from the center of the grindingbase 22 and a grinding axle 25 linked to the rotary axle, and sand belt(not shown) is installed on the outside of the grinding axle 25 forgrinding of wood.

Because the grinding axle 25 rotates at a high school for grinding andpolishing, the sand belt is worn in a high speed, so that it needs to bereplaced after a period of time. However, due to the limited space ofthe working table 21, the operators need to assemble/disassemble thegrinding axle within the limited space between the working table 21 andgrinding base 22. The present invention installs a flexible insert rodcomponent 30 on one side of the grinding base 22, and allow the end ofthe insert rod 41 to be inserted into the insert slot on the rotary axle23, so that the rotary axle 23 can remain stationary, and operators onlyneed to use one tool to rotate the hexagonal section 26 under thegrinding axle 25 to assemble/disassemble the grinding axle 25 quickly.

The structure of the flexible insert rod component 30, as shown in FIG.3, comprises a U-shape positioning base 31 and insert rod 32, so thatthe insert rod 32 is sheathed over the spring 37 and placed inside thepositioning base 31; a buckling ring 35 36 is inserted into the twolimiting slots 33 34 on the insert rod 32, respectively, so that onebuckling ring 35 can be located on the inside of the limiting plate 38of the positioning base 31, and another buckling ring 36 is located onethe outside of the limiting plate 39; when operators need toassemble/disassemble the grinding axle 25, they only need to press thefront of the insert rod 42 with hand to insert the end 41 into thevacant slot 24 on the rotary axle 23 and to limit the rotation of therotary axle 23 and grinding axle 25; when the assembly/disassembly ofthe grinding axle 25 is completed, the operators only need to press thefront of the insert rod 42 to withdraw the entire insert rod 31 underthe limitation of the spring 37 and two buckling rings 35 36, in orderto release the positioning limitation of the rotary axle 23.

Therefore, the flexible insert rod component provided by the presentinvention on the grinding base of the woodworking machine can allowoperators to assemble/disassemble the grinding axle conveniently, sothat grinding efficiency could be greatly improved.

1. A type of assembly/disassembly positioning structure of theupstanding grinding axle, which comprising a set of flexible insert rodcomponent installed on one side of the grinding base, so that whenpressing the front of the insert rod, its end can be insert into theinsert hole on the rotary axle, to limit the rotation of the rotaryaxle, and after releasing the pressed insert rod, the insert rod can beretracted to the original position.
 2. The structure defined in claim 1,wherein said flexible insert rod component can comprise a positioningbase, insert rod, spring, limiting slot, and buckling ring.
 3. Thestructure defined in claim 1, wherein said the insert slot cancorrespond to the insert rod on the rotary axle can be more than one.